Tension device.



G. SINGLETON.

TENSION DEVICE.

APPLICATION FILED JUNE 16, 1911.

Patented Apr. 30, 1912. I

COLUMBIA FMNOGRAFIQ C0 WASHINGTON. D C.

UNITED STATES PATENT OFFICE.

GEORGE SINGLETON, OF DOVER, NEW JERSEY.

TENSION DEVICE.

To all whom it may concern:

Be it known that I, GEORGE SINGLETON, a citizen of the United States, residing at Dover, in the county of Morris and State of New Jersey, have invented certain new and useful Improvements in Tension Devices, of which the following is a specification.

This invention consists in an improved tension device for use in controlling thread in winding and similar operations in which there is employed a rocking structure and two sets of thread-guides arranged to alternate with each other and each disposed in substantial parallelism with the axis of movement of said rocking structure, the thread-guides of one set being carried by said rocking structure and yielding independently of each other, preferably by being each elastic and projecting from said structure.

The accompanying drawing fully illustrates the invention, in which,

Figure 1 is a front elevation; Fig. 2 a plan; Fig. 3 a side elevation; and, Fig. 4 a perspective view of a detail.

a in the drawing is a suitable support which may be clamped, as shown, to the bars 7) of the machine in which the tension device is used. This support includes two rearwardly projecting arms 0, and its front wall 03 has a series of depressions e. Projecting from said front wall (Z and in a horizontal line a set of porcelain thread-guides f are secured to said wall by the screws g, the same being grooved for the reception of the thread, as shown. Similarly secured to and projecting from the wall at are two other thread-guides h by which the thread is guided to and from the set of guides f, the thread extending over one of these and under the other, as shown.

A rocking-structure 2' (to be later described in detail) is fulcrumed in the arms 0, and j denotes elastic devices projecting from said structure in registry with the depressions e and carrying at their ends a set of thread-guides 7: alternating with the threadguides f int-heir normal positions, a. 0., when, as shown, they rest upon the thread extending across the thread-guides f. In the present adaptation gravity maintains the thread guides is in downwardly pressing relation to the thread, the pressure being variable as will be later described.

The resilience of the devices is an important feature of my invention, as thereby Specification of Letters Patent.

Application filed June 16, 1911.

Patented Apr. 30, 1912.

Serial N 0. 633,566.

they are movable independently of each other while all are held by a common influence to exert downward pressure on the thread; thus a high degree of uniformity of tension, although the speed of advance of the thread may be high or low, is attained.

Another important feature of my invention is the pivoting of the structure 2' carrying the devices j, facilitating as it obviously does the operation of arranging the sets of thread-guides in controlling relation to the thread.

Describing, now, in detail the rocking structure and the manner in which it is made to hold each of the devices j: Z is a rod on which is arranged a series of sleeves m each end of each of which is beveled off on the inside, as shown; the elastic devices j are wires (each having a coil 7" at about the middle thereof to heighten its resiliency) formed with hooks j which are slipped over the rod Z in alternate relation to the sleeves m. On one end of the rod is screwed a milled nut n (which may serve as a handle to turn the rocking structure in its bearings) and onto the other end of said rod is screwed a nut 0 which coacts with the nut n to bind the sleeves and wires in fixed relation to the rod when said nut is jammed against the righthand sleeve. The two end sleeves aiford the journals for the rocking structure, whose endwise movement is prevented by the nut n and a shoulder m on the left-hand sleeve. on one end of the rod Z is secured a splitcollar 79 from which projects forwardly an arm q on which is slidingly arranged the weight 9', the split-collar and weight having screws 72' and 1", respectively, for holding them adjustably in position.

I do not wish to be limited to the precise construction herein shown and described, what I claim being:

1. In combination, with a support, a rocking structure journaled therein, and two coacting sets of thread-guides arranged to alternate with each other and each disposed in substantial parallelism with the axis of movement of said rocking structure, one set being carried by the support and the other by the rocking structure and the threadguides of one set being yielding to the thread independently of each other, substantially as described.

2. In combination, with a support, a rocking structure journaled therein, and two coacting sets of thread-guides arranged to alternate with each other and each disposed in substantial parallelism with the axis of movement of said rocking structure, one set being carried by the support. and the other by the rocking structure and the threadguides of one set being elastic devices yielding to the thread independently of each other, substantially as described.

3. In combination, with a support, a rock i115 structure journaled therein, a set of fixed thread-guides arranged substantially parallel with the axis of movement of said rocking structure and spaced from each other, and a set of elastic thread-guides spaced from each other and projecting radially from said rocking structure in registry with the spaces between and coactiug with said first-named thread-guides, said elastic thread-guides being yielding to the threads substantially as described.

In testimony whereof I atlix my signature in presence of two witnesses.

GEORGE SINGLETON. Witnesses JOHN W. STEWARD, WM. D. BELL.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, I). G. 

